I had both a set of FRPP headers and BBK shorty headers.. Actually the workmanship on the BBKs was better -- a lot less welding slag in the port-to-flange mating area. Plus where the primary tubes were mated better to the collector. Also, the flanges on the BBKs were thicker...
The only advantage the FRPP headers had over the BBKs were that they were made of stainless steel. They should last a lot longer.
It could have just been a bad set of FRPP headers -- I don't know. But based on my experience I would chose the BBK over the FRPP. But I ended up returning both of them and went with a set of MAC longtube headers. And believe it not -- the MACs were put together better at the collectors and flanges than either header.
The only advantage the FRPP headers had over the BBKs were that they were made of stainless steel. They should last a lot longer.
It could have just been a bad set of FRPP headers -- I don't know. But based on my experience I would chose the BBK over the FRPP. But I ended up returning both of them and went with a set of MAC longtube headers. And believe it not -- the MACs were put together better at the collectors and flanges than either header.